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Tan M, Wang F, Yang J, Zhong Z, Chen G, Chen Z. Hydroxyl silicone oil grafting onto a rough thermoplastic polyurethane surface created durable super-hydrophobicity. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:1359-1378. [PMID: 38490948 DOI: 10.1080/09205063.2024.2329453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 03/06/2024] [Indexed: 03/17/2024]
Abstract
Indwelling medical catheters are frequently utilized in medical procedures, but they are highly susceptible to infection, posing a vital challenge for both health workers and patients. In this study, the superhydrophobic micro-nanostructure surface was constructed on the surface of thermoplastic polyurethane (TPU) membrane using heavy calcium carbonate (CaCO3) template. To decrease the surface free energy, hydroxyl silicone oil was grafted onto the surface, forming a super-hydrophobic surface. The water contact angle (WCA) increased from 91.1° to 143 ± 3° when the concentration of heavy calcium CaCO3 was 20% (weight-to-volume (w/v)). However, the increased WCA was unstable and tended to decrease over time. After grafting hydroxyl silicone oil, the WCA rose to 152.05 ± 1.62° and remained consistently high for a period of 30 min. Attenuated total reflection infrared spectroscopy (ATR-FTIR) analysis revealed a chemical crosslinking between silicone oil and the surface of TPU. Furthermore, Scanning electron microscope (SEM) image showed the presence of numerous nanoparticles on the micro surface. Atomic force microscope (AFM) testing indicated a significant improvement in surface roughness. This method of creating a hydrophobic surface demonstrated several advantages, including resistance to cell, bacterial, protein, and platelet adhesion and good biosecurity. Therefore, it holds promising potential for application in the development of TPU-based medical catheters with antibacterial properties.
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Affiliation(s)
- Miaomiao Tan
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Fuping Wang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Jinlan Yang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Zhengpeng Zhong
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Guobao Chen
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Zhongmin Chen
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
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Pradhan L, Sah P, Nayak M, Upadhyay A, Pragya P, Tripathi S, Singh G, Mounika B, Paik P, Mukherjee S. Biosynthesized silver nanoparticles prevent bacterial infection in chicken egg model and mitigate biofilm formation on medical catheters. J Biol Inorg Chem 2024; 29:353-373. [PMID: 38744691 DOI: 10.1007/s00775-024-02050-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 03/20/2024] [Indexed: 05/16/2024]
Abstract
Investigating the application of innovative antimicrobial surface coatings on medical devices is an important field of research. Many of these coatings have significant drawbacks, including biocompatibility, coating stability and the inability to effectively combat multiple drug-resistant bacteria. In this research, we developed an antibiofilm surface coating for medical catheters using biosynthesized silver nanoparticles (b-Cs-AgNPs) developed using leaves extract of Calliandra surinamensis. Various characterization techniques were employed to thoroughly characterize the synthesized b-Cs-AgNPs and c-AgNPs. b-Cs-AgNPs were compatible with human normal kidney cells and chicken embryos. It did not trigger any skin inflammatory response in in vivo rat model. b-Cs-AgNPs demonstrated potent zone of inhibition of 19.09 mm when subjected to the disc diffusion method in E. coli confirming strong antibacterial property. Different anti-bacterial assays including liquid growth curve, colony counting assay, biofilm formation assay supported the potent antimicrobial efficacy of b-Cs-AgNPs alone and when coated to medical grade catheters. Mechanistic studies reveal the presence of ferulic acid, that was important for the synthesis of b-AgNPs along with enhanced antibacterial effects of b-Cs-AgNPs compared to c-AgNPs, supported by molecular docking analysis. These results together demonstrated the effective role b-Cs-AgNPs in combating infections and mitigating biofilm formations, highlighting their need for further study in the field of biomedical applications.
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Affiliation(s)
- Lipi Pradhan
- School of Biomedical Engineering, IIT (BHU), Varanasi, India
| | - Prince Sah
- School of Biomedical Engineering, IIT (BHU), Varanasi, India
| | - Malay Nayak
- School of Biomedical Engineering, IIT (BHU), Varanasi, India
| | - Anjali Upadhyay
- School of Biomedical Engineering, IIT (BHU), Varanasi, India
| | - Pragya Pragya
- School of Biomedical Engineering, IIT (BHU), Varanasi, India
| | - Shikha Tripathi
- Department of Physics, IIT (BHU), Uttar Pradesh, Varanasi, India
| | - Gurmeet Singh
- School of Biomedical Engineering, IIT (BHU), Varanasi, India
| | - B Mounika
- School of Biomedical Engineering, IIT (BHU), Varanasi, India
| | - Pradip Paik
- School of Biomedical Engineering, IIT (BHU), Varanasi, India
| | - Sudip Mukherjee
- School of Biomedical Engineering, IIT (BHU), Varanasi, India.
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Jantorn P, Tipmanee V, Wanna W, Prapasarakul N, Visutthi M, Sotthibandhu DS. Potential natural antimicrobial and antibiofilm properties of Piper betle L. against Staphylococcus pseudintermedius and methicillin-resistant strains. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116820. [PMID: 37369337 DOI: 10.1016/j.jep.2023.116820] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/08/2023] [Accepted: 06/18/2023] [Indexed: 06/29/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Piper betle L. has potent of antimicrobial activity and is widely used as a traditional remedy to treat skin infections. However, no clear evidence exists concerning antimicrobial and antibiofilm activity against Staphylococcus pseudintermedius and methicillin-resistant S. pseudintermedius (MRSP) opportunistic pathogens that cause wound infections and pyoderma in canines and zoonotic disease. AIM OF THE STUDY The antimicrobial and antibiofilm activities of P. betle extract were assessed against S. pseudintermedius and MRSP strains. MATERIALS AND METHODS Ethanol leaf extract of P. betle was investigated for its antibacterial effect on S. pseudintermedius and MRSP by broth microdilution and time-kill assays. Biofilm inhibition and production assays were performed to evaluate antibiofilm and biofilm eradication effects, respectively. Biofilm-associated gene expression was further studied using real-time polymerase chain reaction (PCR). The possible interaction between IcaA and major compounds in P. betle was analyzed by molecular docking. RESULTS The extract showed minimum inhibitory concentration (MIC) at 250 μg/mL. Growth inhibition of P. betle at 1 MIC against the bacteria was initially observed after treatment for 4 h. All isolates were completely killed after 18 h exposure to the extract. Minimum biofilm inhibitory concentrations (MBICs) of the extract against the tested isolates ranged 1/2 MIC to 1 MIC, while minimum biofilm eradication concentration (MBEC) of P. betle was initialed at 8 MIC. Quantitative inhibition and eradication effects were observed in representative strains. The extract at 1/2 MIC and 1 MIC values inhibited biofilm formation up to 100%, with bacterial biofilm removed at up to 94.21% by 4 MIC of the extract. The extract downregulated the expression of the icaA gene among biofilm-producing isolates. The most abundant compounds, 4-allyl-1,2-diacetoxybenzene and eugenol showed a strong affinity with IcaA protein at -5.65 and -5.31 kcal/mol, respectively. CONCLUSIONS P. betle extract demonstrated the antibacterial, antibiofilm, and biofilm-removal activity against S. pseudintermedius and MRSP. Downregulation of the icaA gene expression and protein interaction were possible modes of action of the extract that impacted biofilm production. This extract showed promise as an alternative treatment for S. pseudintermedius infection, especially drug-resistant and biofilm-associated cases.
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Affiliation(s)
- Pavarish Jantorn
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand
| | - Varomyalin Tipmanee
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Songkhla 90110, Thailand
| | - Warapond Wanna
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand
| | - Nuvee Prapasarakul
- Center of Excellence in Diagnosis and Monitoring of Animal Pathogens (DMAP), Department of Veterinary Microbiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
| | - Monton Visutthi
- Biology Program, Faculty of Science and Technology, Nakhon Ratchasima Rajabhat University, Nakhon Ratchasima 30000, Thailand
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Zhang J, Pei X, Huang J, Ke X, Xu C, Zhao W, Li L, Weng Y, Chen J. Construction of Hierarchical Micro/Nanostructured ZnO/Cu-ZnMOFs@SA Superhydrophobic Composite Coatings with Excellent Multifunctionality of Anticorrosion, Blood-Repelling, and Antimicrobial Properties. ACS APPLIED MATERIALS & INTERFACES 2023; 15:265-280. [PMID: 36537551 DOI: 10.1021/acsami.2c15102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Naked medical devices are often damaged by blood, bacteria, and other extreme environmental conditions (heat, humidity, acid, alkali, salts, and others), causing device failure and increasing difficulty for the operator. They can also cause inflammation and coagulation resulting in severe complications and even death. In this work, the superhydrophobic ZnO/copper-zinc metal-organic frameworks@stearic acid (ZnO/Cu-ZnMOFs@SA) composite coatings with hierarchical micro/nanostructures were fabricated on Zn substrates via a one-step hydrothermal method. The effects of hierarchical micro/nanostructures on surface wettability, physicochemical stability, and biological properties have been studied in this manuscript. The structure not only provided the coatings with robust waterproofing, abrasive resistance, durability, and thermal and light irradiation stability but also successfully recovered their superhydrophobicity by remodifying the surface with SA, showing excellent repeatability. In addition, the coating demonstrates excellent corrosion resistance and self-cleaning ability and rejects various solid and liquid contaminants. The superhydrophobic ZnO/Cu-ZnMOFs@SA composite coatings also exhibited excellent antibacterial and thrombosis resistance. The findings indicated that the superhydrophobic composite coatings have a strong potential for application in medical instruments for exhibiting multifunctional properties in various extreme environments.
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Affiliation(s)
- Jianwen Zhang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu610031, People's Republic of China
| | - Xinyu Pei
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu610031, People's Republic of China
| | - Jinquan Huang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu610031, People's Republic of China
| | - Xianlan Ke
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu610031, People's Republic of China
| | - Cong Xu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu610031, People's Republic of China
| | - Wei Zhao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu610031, People's Republic of China
| | - Li Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu610031, People's Republic of China
| | - Yajun Weng
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu610031, People's Republic of China
| | - Junying Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu610031, People's Republic of China
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Nasongkla N, Wongsuwan N, Meemai A, Apasuthirat A, Boongird A. Antibacterial and biocompatibility studies of triple antibiotics-impregnated external ventricular drainage: In vitro and in vivo evaluation. PLoS One 2023; 18:e0280020. [PMID: 36603010 DOI: 10.1371/journal.pone.0280020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 12/19/2022] [Indexed: 01/06/2023] Open
Abstract
Hydrocephalus is a neurological disease caused by an unusually high level of cerebrospinal fluid (CSF), which can be relieved by external ventricular drainage (EVD) insertion. However, the infection can lead to complications during the use of EVD. In this study, EVD was impregnated with three synergistic antibiotics, including rifampicin, clindamycin, and trimethoprim, to improve the antibacterial property. The impregnated drainage was studied for its characteristics in vitro and in vivo. Drug loading determination revealed that rifampicin had the highest concentration in the tube, followed by clindamycin and trimethoprim, respectively. In vitro cytotoxicity and hemolytic studies showed no toxic effects from antibiotics-impregnated EVD on fibroblast and red blood cells. For antibacterial testing, the impregnated EVD exhibited antibacterial activity against Staphylococcus aureus MRSA and Staphylococcus epidermidis up to 14 and 90 days, respectively. Moreover, biocompatibility and drug release into the bloodstream and surrounding tissues were investigated by implantation in rabbits for 30 days. Histology and morphology results showed that fibroblast cells began to adhere to the drainage surface and inflammatory cell numbers were noticeably small after the long-term implantation. In addition, there was no drug leakage to the bloodstream and surrounding tissues. Hence, this impregnated EVD can potentially be used for antibacterial application.
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Affiliation(s)
- Norased Nasongkla
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
| | - Nattarat Wongsuwan
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
| | - Aniroot Meemai
- Novatec Healthcare Company Limited, Samrong-Nua, Muang, Samutprakarn, Thailand
| | - Adisorn Apasuthirat
- Novatec Healthcare Company Limited, Samrong-Nua, Muang, Samutprakarn, Thailand
| | - Atthaporn Boongird
- Department of Surgery, Neurosurgical Unit, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Self-Disinfecting Urethral Catheter to Overcome Urinary Infections: From Antimicrobial Photodynamic Action to Antibacterial Biochemical Entities. Microorganisms 2022; 10:microorganisms10122484. [PMID: 36557737 PMCID: PMC9785902 DOI: 10.3390/microorganisms10122484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/18/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
Medical-device-related infections are considered a worldwide public health problem. In particular, urinary catheters are responsible for 75% of cases of hospital urinary infections (a mortality rate of 2.3%) and present a high cost for public and private health systems. Some actions have been performed and described aiming to avoid it, including clinical guidelines for catheterization procedure, antibiotic prophylaxis, and use of antimicrobial coated-urinary catheters. In this review paper, we present and discuss the functionalization of urinary catheters surfaces with antimicrobial entities (e.g., photosensitizers, antibiotics, polymers, silver salts, oxides, bacteriophage, and enzymes) highlighting the immobilization of photosensitizing molecules for antimicrobial photodynamic applications. Moreover, the characterization techniques and (photo)antimicrobial effects of the coated-urinary catheters are described and discussed. We highlight the most significant examples in the last decade (2011-2021) concerning the antimicrobial coated-urinary catheter and their potential use, limitations, and future perspectives.
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7
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Navarro S, Sherman E, Colmer-Hamood JA, Nelius T, Myntti M, Hamood AN. Urinary Catheters Coated with a Novel Biofilm Preventative Agent Inhibit Biofilm Development by Diverse Bacterial Uropathogens. Antibiotics (Basel) 2022; 11:1514. [PMID: 36358169 PMCID: PMC9686518 DOI: 10.3390/antibiotics11111514] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 08/03/2023] Open
Abstract
Despite the implementation of stringent guidelines for the prevention of catheter-associated (CA) urinary tract infection (UTI), CAUTI remains one of the most common health care-related infections. We previously showed that an antimicrobial/antibiofilm agent inhibited biofilm development by Gram-positive and Gram-negative bacterial pathogens isolated from human infections. In this study, we examined the ability of a novel biofilm preventative agent (BPA) coating on silicone urinary catheters to inhibit biofilm formation on the catheters by six different bacterial pathogens isolated from UTIs: three Escherichia coli strains, representative of the most common bacterium isolated from UTI; one Enterobacter cloacae, a multidrug-resistant isolate; one Pseudomonas aeruginosa, common among patients with long-term catheterization; and one isolate of methicillin-resistant Staphylococcus aureus, as both a Gram-positive and a resistant organism. First, we tested the ability of these strains to form biofilms on urinary catheters made of red rubber, polyvinyl chloride (PVC), and silicone using the microtiter plate biofilm assay. When grown in artificial urine medium, which closely mimics human urine, all tested isolates formed considerable biofilms on all three catheter materials. As the biofilm biomass formed on silicone catheters was 0.5 to 1.6 logs less than that formed on rubber or PVC, respectively, we then coated the silicone catheters with BPA (benzalkonium chloride, polyacrylic acid, and glutaraldehyde), and tested the ability of the coated catheters to further inhibit biofilm development by these uropathogens. Compared with the uncoated silicone catheters, BPA-coated catheters completely prevented biofilm development by all the uropathogens, except P. aeruginosa, which showed no reduction in biofilm biomass. To explore the reason for P. aeruginosa resistance to the BPA coating, we utilized two specific lipopolysaccharide (LPS) mutants. In contrast to their parent strain, the two mutants failed to form biofilms on the BPA-coated catheters, which suggests that the composition of P. aeruginosa LPS plays a role in the resistance of wild-type P. aeruginosa to the BPA coating. Together, our results suggest that, except for P. aeruginosa, BPA-coated silicone catheters may prevent biofilm formation by both Gram-negative and Gram-positive uropathogens.
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Affiliation(s)
- Stephany Navarro
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | | | - Jane A. Colmer-Hamood
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
- Department of Medical Education, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Thomas Nelius
- Department of Urology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | | | - Abdul N. Hamood
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
- Department of Surgery, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
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Versatile Thiol- and Amino-Functionalized Silatranes for in-situ polymerization and Immobilization of Gold Nanoparticles. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.10.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Shi H, Ding J, Chen C, Yao Q, Zhang W, Fu Y, Wang X, Ruan J. Antimicrobial Action of Biocompatible Silver Microspheres and Their Role in the Potential Treatment of Fungal Keratitis. ACS Biomater Sci Eng 2021; 7:5090-5098. [PMID: 34634199 DOI: 10.1021/acsbiomaterials.1c00815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Silver nanoparticles have drawn considerable attention as excellent antimicrobial agents because of their characteristics, including broad antimicrobial spectrum, durable antimicrobial property, and large specific surface area. However, the toxicity of silver nanoparticles limits the in vivo application in the antimicrobial therapy field. Here, we developed a novel silver-based biomaterial to achieve favorable biocompatibility as well as enhanced antimicrobial activity. Silver microspheres (AgMPs) were synthesized using bovine serum albumin as a template and H2O2 as an activator. Electron microscopy results showed that AgMPs had a honeycombed inner structure with an approximate diameter of 800 nm. The minimum inhibitory concentration results exhibited that AgMPs had effective antimicrobial action against bacteria and fungi when the concentration was greater than 32 and 16 μg/mL, respectively. The cell proliferation results suggested that AgMPs have no influence on corneal epithelial cell growth when the concentration was under 25 μg/mL. The in vivo antifungal therapy experiments demonstrated that 25 μg/mL AgMPs could effectively combat Candida smooth wound infections. Overall, AgMPs exhibited substantial antimicrobial action on fungi in addition to biosafety on corneal epithelial cells at a concentration within 16-25 μg/mL. Our study shows that AgMPs can be used as an ocular surface drop candidate to treat fungal keratitis.
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Affiliation(s)
- Hanhan Shi
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 20025, P.R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 20025, People's Republic of China
| | - Jieying Ding
- Department of Clinical Laboratory, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Cancan Chen
- School of Life Science, Wuchang University of Technology, Wuhan 430223, China
| | - Qinke Yao
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 20025, P.R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 20025, People's Republic of China
| | - Weijie Zhang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 20025, P.R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 20025, People's Republic of China
| | - Yao Fu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 20025, P.R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 20025, People's Republic of China
| | - Xiansong Wang
- Department of Thoracic Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Jing Ruan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai 20025, P.R. China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai 20025, People's Republic of China
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10
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Li W, Yang Y, Ehrhardt CJ, Lewinski N, Gascoyne D, Lucas G, Zhao H, Wang X. 3D Printing of Antibacterial Polymer Devices Based on Nitric Oxide Release from Embedded S-Nitrosothiol Crystals. ACS APPLIED BIO MATERIALS 2021; 4:7653-7662. [PMID: 35006705 DOI: 10.1021/acsabm.1c00887] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Controlled release of drugs from medical implants is an effective approach to reducing foreign body reactions and infections. We report here on a one-step 3D printing strategy to create drug-eluting polymer devices with a drug-loaded bulk and a drug-free coating. The spontaneously formed drug-free coating dramatically reduces the surface roughness of the implantable devices and serves as a protective layer to suppress the burst release of drugs. A high viscosity liquid silicone that can be extruded based on its shear-thinning property and quickly vulcanize upon exposure to ambient moisture is used as the ink for 3D printing. S-Nitrosothiol type nitric oxide (NO) donors in their crystalline forms are selected as model drugs because of the potent antimicrobial, antithrombotic, and anti-inflammatory properties of NO. Direct ink writing of the homogenized polymer-drug mixtures generates rough and ill-defined device surfaces because of the exposed S-nitrosothiol microparticles. When a low-viscosity silicone (polydimethylsiloxane) is added into the ink, this silicone diffuses outward upon deposition to form a drug-free outermost layer without compromising the integrity of the printed structures. S-Nitrosoglutathione (GSNO) or S-nitroso-N-acetylpenicillamine (SNAP) embedded in the printed silicone matrix releases NO under physiological conditions from days to about one month. The microsized drug crystals are well-preserved in the ink preparation and printing processes, which is one reason for the sustained NO release. Biofilm and cytotoxicity experiments confirmed the antibacterial property and safety of the printed NO-releasing devices. This additive manufacturing platform does not require dissolution of drugs and involves no thermal or UV processes and, therefore, offers unique opportunities to produce drug-eluting silicone devices in a customized manner.
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Affiliation(s)
- Wuwei Li
- Department of Chemistry, Virginia Commonwealth University, 1001 W. Main Street, Richmond, Virginia 23284, United States
| | - Yuanhang Yang
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, BioTech One, 800 East Leigh Street, Richmond, Virginia 23219, United States
| | - Christopher J Ehrhardt
- Department of Forensic Science, Virginia Commonwealth University, 1015 Floyd Avenue, Richmond, Virginia 23284, United States
| | - Nastassja Lewinski
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main Street, Richmond, Virginia 23284, United States
| | - David Gascoyne
- Momentive Performance Materials Inc., 260 Hudson River Road, Waterford, New York 12188, United States
| | - Gary Lucas
- Momentive Performance Materials Inc., 260 Hudson River Road, Waterford, New York 12188, United States
| | - Hong Zhao
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, BioTech One, 800 East Leigh Street, Richmond, Virginia 23219, United States
| | - Xuewei Wang
- Department of Chemistry, Virginia Commonwealth University, 1001 W. Main Street, Richmond, Virginia 23284, United States
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11
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Yong YY, Ong MWK, Dykes G, Choo WS. Betacyanin-inhibited biofilm formation of co-culture of Staphylococcus aureus and Pseudomonas aeruginosa on different polymer surfaces. FEMS Microbiol Lett 2020; 368:6041720. [PMID: 33338235 DOI: 10.1093/femsle/fnaa214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 12/16/2020] [Indexed: 12/12/2022] Open
Abstract
Staphylococcus aureus and Pseudomonas aeruginosa are bacteria that cause biofilm-associated infections. The aim of this study was to determine the activity of combined betacyanin fractions from Amaranthus dubius (red spinach) and Hylocereus polyrhizus (red pitahaya) against biofilms formed by co-culture of S. aureus and P. aeruginosa on different polymer surfaces. Various formulations containing different concentrations of the betacyanin fractions were investigated for biofilm-inhibiting activity on polystyrene surfaces using crystal violet assay and scanning electron microscopy. A combination of each betacyanin fraction (0.625 mg mL-1) reduced biofilm formation of five S. aureus strains and four P. aeruginosa strains from optical density values of 1.24-3.84 and 1.25-3.52 to 0.81-2.63 and 0.80-1.71, respectively. These combined fractions also significantly inhibited dual-species biofilms by 2.30 and reduced 1.0-1.3 log CFU cm-2 bacterial attachment on polymer surfaces such as polyvinyl chloride, polyethylene, polypropylene and silicone rubber. This study demonstrated an increase in biofilm-inhibiting activity against biofilms formed by two species using combined fractions than that by using single fractions. Betacyanins found in different plants could collectively be used to potentially decrease the risk of biofilm-associated infections caused by these bacteria on hydrophobic polymers.
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Affiliation(s)
- Yi Yi Yong
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Michelle Wei Kim Ong
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
| | - Gary Dykes
- School of Public Health, Curtin University, 6102, Bentley, Western Australia, Australia
| | - Wee Sim Choo
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor, Malaysia
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12
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Singh T, Hook AL, Luckett J, Maitz MF, Sperling C, Werner C, Davies MC, Irvine DJ, Williams P, Alexander MR. Discovery of hemocompatible bacterial biofilm-resistant copolymers. Biomaterials 2020; 260:120312. [PMID: 32866726 PMCID: PMC7534038 DOI: 10.1016/j.biomaterials.2020.120312] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/31/2020] [Accepted: 08/07/2020] [Indexed: 12/24/2022]
Abstract
Blood-contacting medical devices play an important role within healthcare and are required to be biocompatible, hemocompatible and resistant to microbial colonization. Here we describe a high throughput screen for copolymers with these specific properties. A series of weakly amphiphilic monomers are combinatorially polymerized with acrylate glycol monomers of varying chain lengths to create a library of 645 multi-functional candidate materials containing multiple chemical moieties that impart anti-biofilm, hemo- and immuno-compatible properties. These materials are screened in over 15,000 individual biological assays, targeting two bacterial species, one Gram negative (Pseudomonas aeruginosa) and one Gram positive (Staphylococcus aureus) commonly associated with central venous catheter infections, using 5 different measures of hemocompatibility and 6 measures of immunocompatibililty. Selected copolymers reduce platelet activation, platelet loss and leukocyte activation compared with the standard comparator PTFE as well as reducing bacterial biofilm formation in vitro by more than 82% compared with silicone. Poly(isobornyl acrylate-co-triethylene glycol methacrylate) (75:25) is identified as the optimal material across all these measures reducing P. aeruginosa biofilm formation by up to 86% in vivo in a murine foreign body infection model compared with uncoated silicone.
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Affiliation(s)
- Taranjit Singh
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK; Biodiscovery Institute and School of Life Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Andrew L Hook
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Jeni Luckett
- Biodiscovery Institute and School of Life Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Manfred F Maitz
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Centre for Biomaterials Dresden, Hohe Str. 6, D-01069, Dresden, Germany
| | - Claudia Sperling
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Centre for Biomaterials Dresden, Hohe Str. 6, D-01069, Dresden, Germany
| | - Carsten Werner
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Centre for Biomaterials Dresden, Hohe Str. 6, D-01069, Dresden, Germany
| | - Martyn C Davies
- School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Derek J Irvine
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Paul Williams
- Biodiscovery Institute and School of Life Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
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13
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Fernández-Gutiérrez M, Pérez-Köhler B, Benito-Martínez S, García-Moreno F, Pascual G, García-Fernández L, Aguilar MR, Vázquez-Lasa B, Bellón JM. Development of Biocomposite Polymeric Systems Loaded with Antibacterial Nanoparticles for the Coating of Polypropylene Biomaterials. Polymers (Basel) 2020; 12:polym12081829. [PMID: 32824142 PMCID: PMC7465146 DOI: 10.3390/polym12081829] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/10/2020] [Accepted: 08/13/2020] [Indexed: 12/13/2022] Open
Abstract
The development of a biocomposite polymeric system for the antibacterial coating of polypropylene mesh materials for hernia repair is reported. Coatings were constituted by a film of chitosan containing randomly dispersed poly(d,l-lactide-co-glycolide) (PLGA) nanoparticles loaded with chlorhexidine or rifampicin. The chlorhexidine-loaded system exhibited a burst release during the first day reaching the release of the loaded drug in three or four days, whereas rifampicin was gradually released for at least 11 days. Both antibacterial coated meshes were highly active against Staphylococcus aureus and Staphylococcus epidermidis (106 CFU/mL), displaying zones of inhibition that lasted for 7 days (chlorhexidine) or 14 days (rifampicin). Apparently, both systems inhibited bacterial growth in the surrounding environment, as well as avoided bacterial adhesion to the mesh surface. These polymeric coatings loaded with biodegradable nanoparticles containing antimicrobials effectively precluded bacterial colonization of the biomaterial. Both biocomposites showed adequate performance and thus could have potential application in the design of antimicrobial coatings for the prophylactic coating of polypropylene materials for hernia repair.
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Affiliation(s)
- Mar Fernández-Gutiérrez
- Institute of Polymer Science and Technology, Spanish National Research Council (ICTP-CSIC), 28006 Madrid, Spain; (M.F.-G.); (L.G.-F.); (M.R.A.); (B.V.-L.)
- Biomedical Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; (S.B.-M.); (F.G.-M.); (J.M.B.)
| | - Bárbara Pérez-Köhler
- Biomedical Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; (S.B.-M.); (F.G.-M.); (J.M.B.)
- Department of Medicine and Medical Specialties, University of Alcalá, 28805 Madrid, Spain
- Ramón y Cajal Health Research Institute (IRYCIS), 28034 Madrid, Spain
- Correspondence: (B.P.-K.); (G.P.)
| | - Selma Benito-Martínez
- Biomedical Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; (S.B.-M.); (F.G.-M.); (J.M.B.)
- Ramón y Cajal Health Research Institute (IRYCIS), 28034 Madrid, Spain
- Department of Surgery, Medical and Social Sciences, University of Alcalá, 28805 Madrid, Spain
| | - Francisca García-Moreno
- Biomedical Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; (S.B.-M.); (F.G.-M.); (J.M.B.)
- Ramón y Cajal Health Research Institute (IRYCIS), 28034 Madrid, Spain
- Department of Surgery, Medical and Social Sciences, University of Alcalá, 28805 Madrid, Spain
| | - Gemma Pascual
- Biomedical Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; (S.B.-M.); (F.G.-M.); (J.M.B.)
- Department of Medicine and Medical Specialties, University of Alcalá, 28805 Madrid, Spain
- Ramón y Cajal Health Research Institute (IRYCIS), 28034 Madrid, Spain
- Correspondence: (B.P.-K.); (G.P.)
| | - Luis García-Fernández
- Institute of Polymer Science and Technology, Spanish National Research Council (ICTP-CSIC), 28006 Madrid, Spain; (M.F.-G.); (L.G.-F.); (M.R.A.); (B.V.-L.)
- Biomedical Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; (S.B.-M.); (F.G.-M.); (J.M.B.)
| | - María Rosa Aguilar
- Institute of Polymer Science and Technology, Spanish National Research Council (ICTP-CSIC), 28006 Madrid, Spain; (M.F.-G.); (L.G.-F.); (M.R.A.); (B.V.-L.)
- Biomedical Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; (S.B.-M.); (F.G.-M.); (J.M.B.)
| | - Blanca Vázquez-Lasa
- Institute of Polymer Science and Technology, Spanish National Research Council (ICTP-CSIC), 28006 Madrid, Spain; (M.F.-G.); (L.G.-F.); (M.R.A.); (B.V.-L.)
- Biomedical Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; (S.B.-M.); (F.G.-M.); (J.M.B.)
| | - Juan Manuel Bellón
- Biomedical Networking Research Centre on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; (S.B.-M.); (F.G.-M.); (J.M.B.)
- Ramón y Cajal Health Research Institute (IRYCIS), 28034 Madrid, Spain
- Department of Surgery, Medical and Social Sciences, University of Alcalá, 28805 Madrid, Spain
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